He has also come in for criticism over his treatment of Wayne Rooney - playing the England striker in a withdrawn midfield role for long periods this season.

Meanwhile, £29m summer signing Ander Herrera and Adnan Januzaj have failed to establish themselves as first team regulars.

But Van Gaal is adamant he has the faith of the dressing room - and if not, he would quit Old Trafford.

“When I see this chemistry between myself and my players, then I don’t have any doubts,” he said.

“Of course, we have disappointing moments, but we can survive and we have confidence to qualify for the Champions League.

“When I think the chemistry between the players and the manager is not good enough anymore, then I go.

“It is not a question, I can go for myself also.

“I am in my first season here and I can still win the title, but that will probably go to Chelsea.

“What we have to do is continue in our process.

“But we have been in the top four longer than Arsenal this season. That is true.”

A top four finish is now United’s only realistic target after being knocked out of the FA Cup by Arsenal.

Despite a difficult first season in charge, Van Gaal also believes he still has the confidence of the club’s hierarchy.

“I’m here to manage the professional football department and I’m here because of my qualities and my philosophy,” he said. “That was spoken about in the first sessions between Ed Woodward and myself.

“After that, I also spoke with the Glazer family and because of that discussion, I am here now.

“I think they are pleased with my way of managing the club. I am not thinking of the consequences if we don’t finish in fourth or third. That would be bad for the club but why do we have to speak now about things that have not happened yet?”